Which of the following developmental milestones is likely achieved before a child turns two? feel embarrassed kick a ball wash hands group objects

The x-coordinate of a particle in curvilinear motion is given by x = 3.1t3 - 4.9t where x is in feet and t is in seconds. the y-component of acceleration in feet per second squared is given by ay = 2.3t. if the particle has y-components y = 0 and vy = 5.0 ft/sec when t = 0, find the magnitudes of the velocity v and acceleration a when t = 1.8 sec. sketch the path for the first 1.8 seconds of motion, and show the velocity and acceleration vectors for t = 1.8 sec. answers: v = ft/sec a = ft/sec2

Using the free-body diagram, calculate the net force acting on the sled. is the sled in a state of dynamic equilibrium?

Resistivity of a material is the resistance of a cm long sample of the material of 1 cm2 cross-sectional area.